Experimental.Rendering.Universal namespace doesn't exist anymore

I'm trying to access the experimental features, like Light2D, via script. According to the docs there's this namespace:

https://docs.unity3d.com/Packages/c...yEngine.Experimental.Rendering.Universal.html

This namespace does not seem to exist though:


Did something change here and the documentation wasn't updated? Because I can't find any way to access any of the features via script anymore.